Re: RGS recreation in 2016 on the C&TS?

Charlie Mutschler Wrote:
-------------------------------------------------------
> Unfortunately 464 isn't a good candidate for re-
> painting as RGS 461 for the same reason that
> 463 isn't. The wrong cylinder configuration . . .

> The first four K-27 conversions to piston valves
> were Nos. 454 (3/1924), 456 (6/1924), 461 (1/
> 1925), & 458 (3/1925). These had the valves
> lined up for re-using their old Stephenson
> valve gears the Class 125s were built with.
> All 4 were apparently rapidly converted to Wal-
> schaerts valve gear. These were the locomotives
> with the valves slightly inward from the centerline
> of the cylinders.


Thank you, Charlie -

For clearly explaining why #463 and #464 won't do for making believable Phraud-O-Graphs of RGS #461, and for a detailed history – with dates – of the dif­ferent K-27 modifications.  Here's a drawing that emphasizes the changes made to the final version of the four locos that eventually ended up with "inboard" piston valves controlled by Walschaerts valve gear:


Note that the above drawing was prepared in hopes that it would inspire 'Swede' Norlin to create lost-wax castings so that Sn3 models could be equipped with work­ing - or at least movable - valve gear.  I.E. not all the nuts & bolts, bearings & bushings, etc. of the prototype are shown, and one should ignore the worm gear . . .   (See the second pair of photos on [ngdiscussion.net] for my handmade version of the above as applied to an HOn3 model.)

- El Abuelo Histœrico, Greengo y Curmudgeoño de los Locomoturas Viejos y Verdes,
aka Der Grossväterlich DünkelOlivGrünDampfKesselMantelLiebHabender



Edited 4 time(s). Last edit at 12/12/2022 12:05PM by Russo Loco.